Rancho Cucamonga, CA
Current conditions, hourly and 7-day forecast, and live radar for Rancho Cucamonga, CA 91737. Right now: mostly clear, 78°F. Data from the National Weather Service.
- Tonight: Mostly clear, with a low around 78. Northeast wind 0 to 10 mph.
- Thursday: Sunny, with a high near 99. West wind 0 to 10 mph, with gusts as high as 20 mph.
- Thursday Night: Mostly clear, with a low around 74. Southwest wind 0 to 10 mph.
- Friday: Sunny, with a high near 93. Southwest wind 0 to 10 mph, with gusts as high as 20 mph.
- Friday Night: Mostly clear, with a low around 68. Southwest wind 0 to 10 mph.
- Saturday: Sunny, with a high near 86.